Washing-machine.



H. S. JUDD ;&'H. PLBTSCH.

WASHING MACHINE.

APPLIOATION'FILBD AUG. 4. 190e.

Patented Feb; 7. 1911;.

UNI

SATES PATENT onirica.

HENRY S. JUIDD AND HENRY PLETSCII, OF CHICAGO, ILLINOIS, ASSIGNORS, BYDIRECT AND MESNE ASSIGNMENTS, T0 I-I. S. IUDD CHICAGO, ILLINOIS, ACORPORATION OF ILLINOIS.

MANUFACTURING COMPANY, OF

W'ASI-IING-MACHINE.

To all whom it may concern:

Be it known that we, HENRY S. JUDD and HENRY PLn'rscH, citizens of theUnited States, residing at Chicago, in the county of Cook and State ofIllinois, have invented a certain new and useful Improvement inIashing-Machines, of which the following is a specification.

Our invention relates to washing machines.

In the drawings- Figure 1 is a side yview of a washing ma chine havingthe mechanism of our invention applied thereto; Fig. 2 is a fragmentarydetail end view of the washing machine showing said mechanism; Fig. 3 isa detail view of one of the knife edge supports for the springs; Eig. dis a detail view of the trunnion mounting for the device; Fig. 5 is adetail view of the hook to which each spring is attached.

Again referring to the drawings, we see one of two horizontal bases 11,each having an upright support or standard 12 arising therefrom, therebeing similar parts on opposite sides of the vessel 14 in which theclothing is washed. In order to apply our invention to the machine, wemake each standard 'l2 in the form of a cross with horizontallyextending arms l5 and 1G, and an upwardly extending arm 12a. Extendingfrom each side of the closed vessel 1a is a trunnion or short shaft 18journaled in the center of the adjacent cross-shaped standard 12. Theouter end of each trunnion 18, after it passes through the cross-shapedsupport that is outside the standard has a non-circular port-ion 22formed thereon, over which a hub 23 having one or more arms 24, 25, 2Gand 27 extending therefrom is detachably secured. The hub 23 is securedin position preferably by means of the washer 30 and screw 31 enteringthe end of the trunnion, but other means may be provided. rPhe advantagein employing radial arms extending in diametrically opposite directionsas shown is that the strain on the mechanism is always evenlydistributed whether'two springs are in use or four. It is not essentialthat the arms 24, 25, 2G, 27 be located outside of the standards of theframework for the strain-distributing feature would be pr-esent if saidarms were located between the stand* ards and the vessel. rlhe mostadvantageous Specification of Letters Iatent. Application led August 4,1906.

Patented Feb. 7, 1911. Serial No. 329,245.

form however, is the one in which the arms are outside of the standardsfor the reason that with such arrangement the standards may be locatedmore closely together which renders the machine more compact andconsequently stronger. Although the machine is illustrated with arms onone side of the vessel only, it is obvious that they might be employedon both sides without exceeding the scope of this invention.

Different loads in the machine require' different tensions and differentleverages and in order to provide for different leverages we constructthe arms 24, 25, 26, 27 in such manner that their effective length maybe increased or decreased. This is in addition to the fact that thetension of the springs themselves is adjustable by means of theadjusting nuts 46 hereinafter mentioned. Of course the longer theeffective length of said arms the greater will be the leverage and thegreater will be the restraining effect of the springs 43 hereinaftermentioned. Various constructions might be provided for lengthening orshortening the eifective length of said arms, but in a suitable designwhich is here shown the outer end of each arm Q4, 25, 26 and 27 is madechannelshaped, as is best shown in Figs. l and 2. A block 84s slidablyfits in the channel of the arm 211 and corresponding blocks 35, 3G and37 lit in the corresponding U-shaped channel-recesses-of the arms 25, 26and 27. Each of the blocks 34 to 37 inclusive, just described, has cutin it an elongated slot S9 through which a thumb screw 40 passes. `Thesethumb screws engage the respective arms in which the respective blocksare mounted, and are adapted to hold the blocks in different positionsto which they may be moved lengthwise of the arms for the purpose ofincreasing or decreasing the effective length and consequently theleverage of said arms. On the upper end of each block 34- to 37inclusive, is pivotally mounted a hook 4t2. To each hook 4t2 is attacheda coil-spring 13 extending radially away from the trunnion. Each springis fastened to its adjacent arm of the standard or framework 12, bymeans of L shaped lugs 45, secured to the arm of the framework, and bynuts provided with suitable knife edges 46 bearing thereon asillustrated in Fig. 8. Each spring 43 may position of Fig. 1. Thesespringsv thereby perform the functions of springs attached to some`portion of the vesselbelow the same and between the upright standards12. I/Vhen the machine is being operated with a very light load the foursprings may be ad justed to light tension, or, if desired, one or moresprings may be removed from operative condition, either by whollyremoving the block 24, 25, 26 or 27 to which it is attached, Vor byunhooking the spring from the hook 42 to which it is attached. Theconstruction here shown and described removes the springs wholly frombeneath the vessel, thereby doing away with interference between thesprings and the vessel, and at the same time it enables the supportingstandards 12 to be placed very close to the j vessel, thereby making themachine very compact.

We desire to call attention to the advantage Vof having the springs 43detachable and arranged radially opposite each other in one or morepairs. By such arrangement various loads in the vessel may be taken careof. With a heavy load all four springs will be used or eight springsmight be used'in the case of large machines, four on each side of thevessel. With lighter loads however, fewer springs will be used andthree, two or even a single spring might be sufficient. For the lighterloads moreover the operator would decrease the effective lengths of arms24, 25, 26, 27 in the manner above pointed out, and would decrease thetension on the one or more acting springs by backing off the adjustingnuts 46. Thus the machine may be accomnoollated to a wide range ofvariation in The L-shaped lug 45 with a depression to receive the knifeedge 46 which is on a nut screw threaded upon the rod which is connectedwith the spring, is shown in Fig. 3

'where the parts illustrated at the top of Figs. 1 or 2 are shownenlarged.

In Fig. 5 an enlarged view of the connection between the hook and thesliding block is shown. The sliding block 86 has a lug and upon this ispivotally secured the upper part of the hook. A transverse bolt holdsthe parts together.

What we claim as new and desire to secure by Letters-Patent is:

1. In mechanism of the class described in combination with a supportingframework and a vessel carrying a trunnion journaled in said framework,a lever arm rigidly secured to said trunnion, a block slidably mountedlengthwise of said lever arm, means for detachably securing said blockin Aposition upon said lever arm, and a spring secured to said block andto said framework madapted to control the motion of the vessel asdescribed.

2. The combination of a washing tub with a frame on which it is mountedso as to oscillate around a fixed horizonal axis, near the bottom of thetub with springs arranged radially, oneextending vertically downwardfrom such axis of oscillation, and two extending laterally from suchaxis of oscillation in a horizontal plane, and secured each at one endto the frame and at the other end to a radial projection from the tub ata distance from its axis of oscillation.

3. The combination of a washing tub with a frame on which it is mountedso as to oscillate around a fixed horizontal axis, near the bottom ofthe tub with springs arranged radially, one extending verticallydownward from such axis of oscillation, and two extending laterally fromsuch axis of oscillation in a horizontal plane, and secured each atone'end to the frame and at the other end to a radial projection fromthe tub at a distance from its axis of oscillation, the connectionbetween the spring and the tub being adjustable to vary the tension ofthe springs.

4. The combination of a washing tub with a frame on which it is mountedso as to oscillate around a fixed horizontal axis, near the bottom ofthe tub with springs arranged radially, one extending verticallydownward from such axis of oscillation, and two extending laterally fromsuch axis of oscillation in a horizontal plane, and secured each at oneend to the frame and at the other end to a radial projection from thetub at a distance from its axis of oscillation, each of said springsprovided at each end with a rocking connection to the frame or tub asthe case may be.

In witness whereof, we have hereunto subscribed our names, in thepresence of two witnesses.

HENRY S. JUDD. HENRY PLETSCI-I.

Witnesses:

HOWARD M. Cox, C. J. CHRIs'roFFEL.

